> For the complete documentation index, see [llms.txt](https://docs.browser-extension.aelf.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.browser-extension.aelf.io/user/backup-nightelf.md).

# Backup NightELF

You can back up your NightELF data to prevent your device from being damaged or lost.

You can go to homepage first, then click Extension `Management` > `Backup NightELF`, enter your password and click Backup NightELF.

![Backup NightELF](/files/-Lwc0UnSpNNKeof5zKsm)

Click `Backup NightELF`

The browser will download the file named `NightELF_backup_file_xxxxxx.txt`.

Do not modify the file to prevent the data cannot be recovered. Please properly store the file. It is also recommended that you backup your NightELF once in a while.

The file is encrypted. You cannot directly get your keypair information when you open the file, but you still need to keep it properly.